Hamilton 24V Valve Springs – Perfect for Up to 4,500 RPM and 80lbs. of Boost/Drive Pressure

Are you running more than 35 psi of boost or exhaust drive pressure on your 24-valve Cummins? Stock springs rated at just 78–82 lbs of seat pressure (at 1.380″) can’t consistently control the valvetrain under high boost. As pressure increases, the intake and exhaust valves risk being blown open, causing reversion—the reintroduction of exhaust gases into the cylinder that hinders combustion and robs power.

Key Benefits

• Increased Seat Pressure: Eliminate the risk of valves blowing open under high boost.
• Optimized Power Delivery: Prevent reversion for cleaner, more efficient combustion.
• Protect Your Camshaft: Recent adjustment lowers nose pressure from 220 lbs to 180 lbs, reducing excess cam wear. Watch out for competitor springs exceeding 250 lbs nose pressure.
• Reliable Performance to 4,500 RPM: Beyond 4,500 RPM, consider upgrading to our #110 springs for safer operation.
• Warranty Considerations: We only warranty our cams if you run Hamilton springs and tappets—protect your investment from avoidable wear and damage.

Technical Insights

• Nose Pressure Details: 1.031″ with OEM cams, 0.958″ with our 188-220 cam.

Note: Tool steel retainers are not included but can be purchased separately.

Step up to Hamilton 24V Valve Springs and keep your valvetrain under control in high-boost, high-RPM conditions—so you can maximize power, protect your cam, and drive with confidence.